Author(s): Juan Francisco Fuentes-Perez; Marina Martinez-Miguel; Marcelo Xavier Ruiz-Coello; Ana Garcia-Vega; Francisco Javier Bravo-Cordoba; Francisco Javier Sanz-Ronda
Linked Author(s): Juan Francisco Fuentes Perez, Marcelo Xavier Ruiz Coello
Keywords: No Keywords
Abstract: Addressing water scarcity in extensive Mediterranean agriculture requires accessible precision irrigation tools. We introduce OASIS, a low-cost, open-source IoT sensor network designed to make precision irrigation accessible for extensive Mediterranean agroecosystems facing economic and infrastructural constraints. The system combines distributed soil and weather sensing with FAO-56 ETo modeling and plot-scale water balance for adaptive irrigation scheduling. Deployed in Viñalta (Palencia, Northwestern Spain), the network's weather node provided daily ET₀ estimates showing strong agreement (R² = 0.83) with the regional reference. Continuous soil moisture data allowed for the identification of percolation losses and refinement of irrigation strategies, demonstrating potential water savings up to 39% in an experimental alfalfa (Medicago sativa L., 1753) field without yield impacts. OASIS's modular and open-source design facilitates broader adoption, promoting water-use efficiency and digital inclusion as climate adaptation pathways in agriculture.
Year: 2026